package com.xzx.spark.core.wordcount

import org.apache.spark.{SparkConf, SparkContext}

/**
 *
 * ${DESCRIPTION}
 *
 * @author xinzhixuan
 * @version 1.0
 * @date 2021-06-26 8:39 下午
 */
object Spark_WordCount_AggregateByKey {
  def main(args: Array[String]): Unit = {
    val conf = new SparkConf().setMaster("local[*]").setAppName("Spark_WordCount_AggregateByKey")
    val context = new SparkContext(conf)
    context.textFile("input/wc.txt").flatMap(_.split(" ")).map((_, 1))
      .aggregateByKey(0)(_ + _, _ + _).collect().foreach(println)

    context.stop()
  }
}
